Feeler-loch



C. ["LDRAPER AND J. NORTHROP.

FEELER LOOM. APPLICATION HLED NOV. 1, 1919.

1,361,839. Patented Dec. 14, 1920.

3 SHEETS-SHEET I.

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C. H. D'RAPER AND J. NORTHHOP.

mm LOOM. I APPLICATION FILED NOV. 1, 1919. .1,361,$39 Patented Dec. 14,1920. a SHEETS-SHEET 2.

C. H. DRAPER AND J. NORTHHOP.

FEELER LOOM.

APPLICATION FILED NOV. 1, 1919.

1,3 1, 39 Patented Dec.14,1920.

3 SHEETS-SHEET 3.

CONNECTIONS BETWEEN WP DETECTOR AND SHIPFER LEVEL lJlTE.

AfiSIGNORS T0 HGPEDALE MASSACHUSETTS, A. COBPOlM-Jtltllll (ll.

ltING GUMIPANY, laASlSAClETUSl-THTE 0F MILFORD,

FEELER-LOO1VL original application filed May 1, 1916, Serial No. 941,66?Tl'iivicled and this application filed November 1 Serial No. 335,006.

To all whom it may concern:

lie it known that We, CLARE l -l. DnArnn and Jonas NORTHROP, citizens ofthe United States, residing at lFlopedaln-a, in the county of ltorcester and Commonwealth of Mas sachusetts, have invented certain newand useful limprovements in Peeler-Looms; and we do hereby declare thefollowing to be a full, clear, and exact description. of the in vention,such will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to an improvement in feeler looms and moreparticularly to an improvement in mechanism for preventing theoccurrence of mispiclrs and double picks.

were replenishing looms employed in the production of high grade fabricsare commonly provided with filling teeler mechanism for the purpose ofpreventing the weft or filling in the active shuttle from becomingentirely exhausted, so as thereby to eliminate the weaving of shortwetts or filling threads into the cloth. Such looms are known as'li'eeler looms. lit sometimes happens that during: the operation ofeven a teeler loom, short wetts occur thereby causinn a blemish in thecloth. When only a short oft or lilling; islaid in one shed, a ionditmnobtains which. is lrnown in the art as a misguclrg and when a short wettor ti ing is laid in the same shed with a complete \vctt, a conditionobtains which is known in the art as a double pick. The object of thepresent invention is to produce a loom in which the occurrence ofm'spiclrs or double picks is prevented.

this cause of the occurrence of double pints during the operation ofteeler looms is the fact that after the filling or weit replenishingoperation, the fillingend extend ingfrom the hopper to the salvage ofthe cloth (this filling end being known as the incoming filling end) isliable to loreak and snap into the shed before it is caught and out nearthe selvage by the temple thread cutter. The feature of the inventionwhich prevents double picks from this cause consists of temple cutterwhich is located on the we'tt replenishing side of the loom and whichoperates positively-being controlled ll atentod lllec. let, ltmtl.

in its operationby the movements oft/he lay to cut the incoming fillingend at the beginning; oil or during the second return beat or backwardmovement of the lay after replenishment, that is, as soon as the firstthread laid in the warp after replenishment is engaged and held. by thewarp on the first shedding operation succeeding replenishment. Thisfeature of the invention is not restricted to teeler looms, but may beemployed in connection with any type 01" weft replenishing loom.

The features of the invention "for prevent ing the occurrence ofmispiclrs and double picks during the operation of a ieeler loom aredescribed in the following specification and particularly pointed out inthe appended claims.

in the accompanying drawings illustratinn the preferred form of theinvention, l igure l is a plan oil a portion 01. the weft replen shing;side of the loom, showing; the in'iproved temple thread cutter, with thefilling detector located adjacent the teeler thread parting and clampingmechanism; Figs. 2, 8 and illustrate the operation of the temple threadcutter, llig. 2 showing the normal position oi. the parts, l showing thepositions of the parts on the lirst beat-up of the lay after weftreplenishment, l showing the positions of the parts on the second returnor backward heat of the lay atter weft replenishment; llig. 5 is a planillustrating the various features of the invention.

The feeler loom to which the features of the present invention areapplied may be of any usual or preferred form. The loom illustrated inthe drawings comprises a hreast beam 5 on the right-hand end of which issecured a bracket 6 which supports the'hopper and other parts of theweft replenishino, mechanism W. The lay 7 is mounted for oscillatorymovements toward and from the breast beam. Mounted on the breast beam isthe usual temple indicated at 8. Fulcrumed in suitable journals securedto the front side of the loom andeX- tending transversely thereof, isthe change or rock shaft 9 connected. at one end with the weftreplenishing mechanism W. When the filling feeler mechanism indicatespredetermined or critical exhaustion of filling on the bobbin in theactive shuttle, the rock shaft 9 is adapted to be oscillated to set inoperation the weft replenishing mechanism. The construction of the partsabove enumerated and their mode of operation, together with other partsof the loom necessary to a disclosure of the present invention, arewelldznown to those skilled in the art. I

' The feature-of the invention which prevents double picks by severingthe incoming filling end before it can break and snap into the shed,consists of an improved temple thread cutter which is adapted to operateupon the incoming filling end on the second return or backward beat ofthe lay after the replenishing operation. This temple thread cuttercomprises a longitudinally movable or reciprocatory cutting member 10and an oscillatory member 11. The cutting edges of these members are solocated that when they are in normal open position, any filling endextending from the fell of the cloth toward the replenishing endof theloom is in the path of their cutting move ment; The member 10 issomewhat" elongatedin form, is mounted upon the temple 8 contiguous tothe outer side thereof, and is retained in position by two pins 12 and13 projecting laterally from the temple. These pins are receivedrespectively in elongated slots 14 and 15 .in the cutting member 10. Theslot 15 is provided with a recess or shoulder. 16 which is adapted toreceive the pin 13 when the cutter is in normal position. The member 10is retained in normal position by means of a spring 17 secured at oneend to an eye 18 formed on the forward end of the member 10, and at theother end to a pin '19 fastened to the temple. It will be observed thatthe member 10 has a slight pivotal movement on the .pin- 12,and that thespring 17 is sorsituated with respect to the line connecting, the pin 13and the pin 12 that, whenever the member 10 is moved forward, and'therecess 16 is thereby brought opposite the pin 13, the spring 17 will actto draw the forward end of the member 1O upwardly until the pin 13 isreceived in'the recess 16'; I

The oscillatory'cutting member 11 is pivotally mounted on a pin 21projecting laterally from the rearward end of the recip-. rocatoryvcutting member 10. The oscillato-ry cutting member is provided with acam slot 22 situated above the pivot 21. The rearward end of' this slotregisters with the slot 14: in the member 10, when the cutting membersare in normal position, as shown in Fig. 2, and the forward end 23 ofthe slot 22' is formed somewhat at right angles with; the rearward end.The pin 12 pro jects. through; the cam slot 22. When the cutting member10 is movedrearwardly toward the lay, the cutting member 11 is carriedwith it inoperatively until the forward side of the part 23 of the slot22 comes into contact with the pin 12. The continued forward movement ofthe members 10 and 11 causes the forward side of the part 23 of the slot22 to bear against the pin 12, thereby oscillating the mcmber 1.1 on thepin 21. and closing it rapidly against the cutting edge of the member10.

The improved temple thread cutter is adapted to be brought intooperation upon an actuation of the rock shaft 9 by means of the fillingfeeler mechanism, and for this purpose it is so constructed that itdepends for the preliminary movement which shifts it from normal to asecondary position upon the action both of the rock shaft and of the vlay. The subsequent movements necessary to bring the thread cuttingmembers into final position for the thread cutting operation areeffected by means of a cam member 25 which is loosely pivoted at thehole or aperture 20 therein on a pin 26 projecting laterally from thereciprocatory cutting member 10. The rearward end of the cam member 25projects downwardly as a hunter 2?, and its forward end extends towardthe front of the loom and is provided with a hookshaped lug 28 whichnormally rests upon a shoulder 29 formed on a cutter arm 30 secured tothe rock shaft 9.

lVhen the filling feeler mechanism has indicated critical exhaustion offilling, and the rock shaft 9 is turned anti-clockwise, viewing Fig. 4-,the arm 30 moves to the left and the shoulder 29 draws out from underthe hook 28, and thereupon the cam member 25 swings on the pivot 26under the tension of the spring 31 connected at one end to the arm 30and at its other end to the member 25, until a cam surface 32 formed onthe cam member comes into on gagement with a stop pin 33 fast in thetemple. The cam member 25 is then left substantially in the positionshown in Fig. 3.

()n the beat-up of the lay during weft rcplenishrnent. inasmuch as thearm 30 still remains in the position shown in the dotted lines in Fig.3. the engagement by the lay with the hunter 2? is ineffective. On thefirst backward beat of the lay, however, after replenishment. the arm 30swings to the right again and the under part of the shoulder 29 engagesthe upper surface of the lug 28 at the end of the member 25, as shown infull lines in Fig. 3. On the next forward beat of the lay, which is thefirst filling feeling beat after replenishment, the lay comes intoengagement with the hunter 27' and moves the member 25 forward, forcingthe cam surface 32 against the stop pin 82-3 and the forward end of themember 2:) under the shoulder 29. T hereupon, the upper side of theaperture 20 in the member ll O 25 is forced against the pivot pin 26 andmoves it downwardly, carrying with it the forward end of thereciprocatory cutting member 10, thereby turning the member 10 on thepin 12 until the recess 16 is clear of the pin -18. All the parts of thethread cutter are now in theposition shown in full lines in 3. Upon thereturn or next backward beat of the lay, which is the second return beatafter replenishment, the disengagement of the lay from the hunter 27permits the spring 17 to draw the cutting member 10 rearwardly. Therearward movement of the member 10 carries the oscilla tory member 11with it until the part 23 of the cam slot 22 reaches the pin 12,whereupon the member 1]. is caused to oscillate on the pin 21, therebyclosing the cutting edge of the member 11 against the cutting edge ofthe member 10 and severing the filling ends extending from the selvageof the cloth outwardly toward the replenishing mechanism. T he positionsof the parts of the cutter at this time are shown in Fig. l, l Vhen theshuttle reaches the filling feeler side of the loom, and the lay beatsforward on the next filling feeler beat, it strikes a projection 34depending from the under side of the reciprocatory cutting member 10,and carries the member 10 toward the breast beam until the recess 16 isbrought opposite the pin 13, whereupon the action of the lay upon themember 10 (cooperating with the spring 17) lifts the forward end of themember 10 until the pin 13 is received in the recess 16. At the timethat the lay strikes the projection 34, it also strikes the hunter 2'?of the cam member 25 and forces it forward, causing the forward end ofthe member 25 to ride up over the shoulder 29, until the book 28 reststhereon in its normal position;

Although the thread cutter described above is intended primarily tosever the fillin end left by the incoming bobbin, that is, the incomingfilling end which extends from the selvage tothe hopper, in order to prevent its breaking and snapping into the shed and thereby causing adouble pick, this thread cutter also operates incidentally to sever thefilling end left by the outgoing bobbin, that is,that part of theoutgoing filling end which extends from the selvage to the usual. feelerthread parting and clampin;- mechanism. P, which is located adjacent theweft replenishing mechanism and severs the out oing filling endrelatively near the shuttle.

t will. be observed from the foregoing description of the mode ofoperation of the temple thread cutter that the liability of the incomingfilling end being broken and snapped into the shed is practicallyeliminated. It is obvious that the incoming filling end must not be cuton the first pick of on the next shedding.

the shuttle away fromthe weft replenishing side of the loom becausethere would then be nothing to hold the filling until it had been beatenup against the fell by the reed and been caught by the warp threads Itis not desirable that the thread cutter should be permitted to operateupon this filling end while the lay on its forward center. Accordingly,the thread cutter of the present invention is constructed to cut theincoming filling end during the second return beat of the lay afterreplenishment.

The present application is a division of our copending application,Serial No. 94,667, filed lviay 1, 1916.

Haw-ring thus described the invention what is claimed is:

l. A feeler loom having, in combination, lay, a breast beam, a weftreplenishing rhanisin, a filling iieeler mechanism, conne ,tionslet/ween the weft replenishing mechanism and the filling feelermechanism inrzluding a rock shaft, and a thread cutter constructed andarranged for actuation by the lay and by the rocli shai't so as to movefrom normal to secondary position on the in dication of criticalexhaustion of filling by the filling feeler mechanism, to remain inseconds y position during the next forward beat of the lay, to be movedto a third position. on the next forward beat of the lay, and to out theoutgoing and incoming filling ends extending from the selvage toward theweft repleniiiing mechanism on the next back ward mat of the lay,

A teoier loom having, in combination, a lay, a breast beaiin, a weftreplei'iishing mechanism, a filling feeler mecl anism, connecting in unsbetween the two mechanisms, a temple, a thread cutter comprising areciprocatory cutting member mounted on the temple, an oscilhitorycutting member mounted on the reeiii'oeatory cutting member, and a caminemb and onnections between the conni. i means and the cam member, theparts of the thread cutter being constructed and arranged-to performtheir cutting operation on the third backward beat of the lay after theindication. of critical exhaustion oi? filling.

3. A weft replenishing loom having, in combination, a hay, weftreplenishing mech anism, and a thread cutter located on the'replenishing side of the loom having provision by virtue of which. itsoperation is deferred until the second. backward beat of the lay afterreplenishment to sever the filling extending outwardly from the selvage.

i. A weft replenishing loom having, in combination, a lay, a breastbeam, a weft replenishing mechanism, a rock shaft, a temple, and athread cutter comprising a reciprocatory cutting member, an oscillatorycutting member, a cam member, and connections between the rock shaft andthe cam member, the reciprocatory cutting member being I mounted on thetemple and the oscillatory cutting member and the cam being mounted onthe reciprocatory cutting member, the cam member being adapted to bemoved from normal position to a secondary position when the parts of theweft replenishing mechanism are positioned to cause weft replenishmenton an actuation of the rock shaft, and to be moved to a third positionon the first forward beat of the lay after replenishment to bring thereciprocatory cutting member into position to cooperate with theoscillatory cutting member to cut the thread extending from the hopperto the selvage on the next backward beat of the lay.

5. A feeler loom having, in combination, a filling feeler mechanism, aweft replenishing mechanism, connections between the two mechanismsincluding a cutter arm, a breast beam, a lay, a temple and a templethread cutter comprising a reciprocatory cutting member mounted on thetemple, an oscillatory cutting member, a cam member, the two lattermembers being mounted on the recip rocatory cutting member, connectionsbetween the cutter arm and the cutter members, pin and slot connectionsbetween the reciprocatory and oscillatory cutting members, and means formoving the thread cutter members toward the lay during the threadcutting operation, the reeiprocatory cutting member and the cam memberhaving provision whereby, on the next forward beat of the lay after thecutting operation, the cutter members are restored to normal position.

6. A weft replenishing loom having, in combination, a lay, a weftreplenishing mechanism, a rock shaft, and a thread cutter constructedand arranged to be actuated by the rock shaft and by the lay to be movedfrom normal to a secondary position on the beat of the lay resulting inan actuation of the rockshaft, to remain in secondary position on thenext beat of the lay, to be moved to a third position on the next beatof the lay, and to perform the thread cutting op eration on the'thirdbackward beat of the lay after the actuation of the rock shaft.

7. Aweft'replenishing loom having, in combination, a breastbeam, a weftreplenishing mechanism, a rock shaft, an arm fast thereon, a lay, and athread cutter mounted on the breast beam comprising a reciprocatorycutting member, an oscillatory cutting member, a cam member looselyconnected with the rock shaft arm adapted to more from normal tosecondary position and to be disconnected from the arm on an actuationof the rock shaft and to move the reciprocatory cutting member fromnormal to a secondary position on its engagement with the lay on theforward beat of the latter after the weft re 'Jlenishing operation, andmeans for causing the reciprocatory and oscillatory cutting members toperform their cutting operation upon the disengagement of the lay fromthe cam member.

8. A weft replenishing loom having, in combination, a lay, weftreplenishing mechanism, and a thread cutter comprising a reciprocatoryblade, an oscillatory blade, and means for actuating the blades havingprovision by virtue of which their actuation is deferred until thesecond backward heat of the lay after replenishment to sever the fillingextending outwardly from the selvage.

9. A feeler loom having, in combination, a lay, a breast beam, a weftreplenishing mechanism, a filling feeler mechanism, said mechanismsbeing mounted on opposite sides of the loom, a thread cutter mounted onthe weft replenishing side of the loom constructed and arranged to cutthe outgoing and incoming filling ends extending from the selvage towardthe replenishing mechanism, on the second backward beat of the lay afterweft replenishment, and a filling detector mounted on the breast beamand situated between the thread cutter and the weft replenishingmechanism.

10. Afeeler loom having, in combination, a lay, a breast beam, a weftreplenishing mechanism, a filling feeler mechanism, a thread cuttersituated on the weft replenishing-side of the loom and adapted to cutthe outgoing and incoming filling ends near the selvage at one operationon the second bacle ward beat of the lay after weft roplenishment, and afilling detector mounted on the side of the loom remote from the fillingfeeler mechanism.

11. A feeler loom having, in combination, a lay, a breast beam, a weftreplenishing; mechanism, a filling feeler mechanism, and a thread cuttersituated on. the weft replenishing side of the loom and adapted to cutthe outgoing and incoming filling ends near the selvage on the secondbackward beat of the lay after weft replenishment.

CLARE H. DRAPER. JONAS NORTHROP.

